Mine water is frequently acid and liable to corrode metal pipes, and there are also many cases where water charged ... delivering about 17, 000 cubic yards of solids per month against a working pressure of about 17 lbs. per square inch. ... This tube is then laid inside one half of the steel, the other half steel shell is placed on top and the two bolted together. ... The rubber liner was first substituted for a hard iron or manganese steel liner, and consisted of a slab of rubber, 3ft. wide, 12ft.
|Title||:||Industrial & Mining Standard|